... mask Half face maskBig eye windowBinocular windowInward leakage %≤0.05≤0.05≤2 Dead space %≤1≤1≤1View Total vision %≥70≥65 ... ,Lewisite,mustard gas,poisonous smoke and fog etc(CNCL)3.0501.123P-BGreyComprehensive antivirushydrocyanic,acid arsenic hydride,phosgene,chloropicrin, ... and its derivative,poisonous smoke and fog(CNCL) (CO)3.05.850100 Z-A-P3 Brown with pink strpeAgainst organic gasorganic ...